Scissor lift table

Abstract

The invention provides a scissor lift table having a base unit ( 12 ) and a carrier unit ( 14 ) being adjustable plane-parallel relative to the base unit ( 12 ) by means of a scissor unit( 16 ) provided with a drive device ( 18 ).

The invention claimed is: 
     
       1. A scissor lift table comprising,
 a base unit and 
 a carrier unit said carrier unit being adjustable relative to the base unit by means of a scissor unit provided with a drive device, 
 wherein the scissor unit comprises at least one pair of scissor members having two scissor members which are connected to each other by a joint and one of which is mounted with one end on a first pivot bearing being arranged stationary on the base unit, and movably guided with the other end on the carrier unit, and the other scissor member is mounted with one end on a second pivot bearing being arranged stationary on the carrier unit and movably guided with its other end on the base unit, 
 wherein the drive device comprises a toggle lever arrangement of which a first lever element engages one of the scissor members, and a second lever element, which is connected to said first lever element and pivotably mounted on the base unit, is provided with a windable tensile element, wherein the second lever element has a curved guiding surface against which the windable tensile element comes to lie flat. 
 
     
     
       2. The scissor lift table according to  claim 1 , wherein the tensile element is a drive belt, which, for actuating the carrier unit, can be unwound from a winding device or wound onto said winding device. 
     
     
       3. The scissor lift table according to  claim 1 , wherein the tensile element is guided over at least one deflector element, in particular at least one deflection roller. 
     
     
       4. The scissor lift table according to  claim 1 , wherein the tensile element is fastened to a suspension device of the second lever element, said suspension device being fastened in the area of a joint axis between the first lever element and the second lever element. 
     
     
       5. The scissor lift table according to  claim 1 , wherein the second lever element has two lever shells which are arranged laterally relative to a longitudinal middle plane of the table and are connected to each other via a guiding element which forms the guiding surface against which the at least one drive element comes to lie flat. 
     
     
       6. The scissor lift table according to  claim 1 , wherein at least two tensile elements which can be wound onto a shared winding device. 
     
     
       7. The scissor lift table according to  claim 1 , wherein a pulley-type transmission is interposed between a drive motor and the tensile element.